/**
 * Copyright (C) 2011 Angelo Zerr <angelo.zerr@gmail.com> and Pascal Leclercq <pascal.leclercq@gmail.com>
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.odftoolkit.odfdom.converter.internal;

import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;

import org.odftoolkit.odfdom.doc.OdfDocument;
import org.odftoolkit.odfdom.dom.DefaultElementVisitor;
import org.odftoolkit.odfdom.pkg.OdfElement;
import org.w3c.dom.Node;
import org.w3c.dom.Text;

public abstract class ElementVisitorConverter extends DefaultElementVisitor {

	protected final OdfDocument odfDocument;
	protected final OutputStream out;
	protected final Writer writer;

	public ElementVisitorConverter(final OdfDocument odfDocument,
			final OutputStream out, Writer writer) {
		this.odfDocument = odfDocument;
		this.out = out;
		this.writer = writer;
	}

	@Override
	public void visit(OdfElement ele) {
		Node node = ele.getFirstChild();

		int nodeType = -1;
		while (node != null) {
			nodeType = node.getNodeType();
			switch (nodeType) {
			case Node.ELEMENT_NODE:
				OdfElement element = (OdfElement) node;
				element.accept(this);
				break;
			case Node.TEXT_NODE:
				processTextNode((Text) node);
			}
			node = node.getNextSibling();
		}
	}

	protected abstract void processTextNode(Text node);

	public void save() throws IOException {
		if (out != null) {
			out.close();
		}
		if (writer != null) {
			writer.close();
		}
	}
}
